When do you need camber plates?

[bento]

I'm just wondering at what stage in the game do you have to start looking into camber plates in the front of an 88 carrera. i'm just buying new tires and i'm going to a 225/45/17 on a 17x7.5 fikse at the front and i'm already getting some tire rub with the current 205/50/17s in the front left on hard right hand turns. i know that PBS (blackbird targa) already mentioned that he is running a 225 at the front, but what type of negative camber is needed to accommodate this tire size? i've already got my car maxed out with the stock strut housing and the most i can get on one side is about 1.3 degrees and 0.9 or something like that according to a smart racing camber mount. what's the deal here? should i get some camber plates? do i need to have the strut housing modified/cut away to allow for the top of the shock to move further inward?

oh yeah, car is standard aside from turbo tie rods and bilstein hd (green) front and sport (yellow) rears.

thanks

david

[cstreit]

Camber plates are typically used when the suspension settings will not allow more negative camber.

I personally don't believe that using negative camber to accomodate more tire width have much practical value. When you add negative camber, you essentially are lifting the outisde of the tire off the ground (over simplification). So any width gaines in rubber is not nearly as effective because the camber doesn't allow it to effectively reach the road.

Now there are benefits to more neg. camber and I know a number of races using almost 3 degrees, but this goes beyond my knowledge of suspension... I generally run 1.5 degrees in my racecar, but my tires already have some built in to begin with.